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Author: V.N.Hiromel de Silva, Dermatology Registrar, Waikato Hospital, New Zealand, 2008.
Acquired blaschkoid dermatitis is a rare skin condition of unknown cause. It was first described in 1990 by Grosshans and Marot in Bordex, France.
Acquired blaschkoid dermatitis
This condition is an inflammatory skin condition resembling dermatitis or eczema and presents with dry, red irritable skin lesions. It is not present at birth, hence the term 'acquired'.
Acquired blaschkoid dermatitis is unilateral — it only affects one side of the body. As its name would suggest, the skin lesions occur along Blaschko lines.
The lesions may resolve spontaneously but they have a tendency to relapse over time, especially at times of stress.
The diagnosis of acquired blaschkoid dermatitis is made clinically because of its characteristic appearance.
Sometimes a skin biopsy is required to distinguish it from other skin conditions that may arise in Blaschko lines. Histopathological examination shows spongiotic dermatitis.
Mild blaschkoid dermatitis may not require any specific treatment. Dryness may be managed with an emollient.
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